Power Supplying Circuit Dynamic Voltage Switching for NVDC Efficiency
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Solution Overview
Problem
Portable computer apparatuses using the narrow voltage direct current (NVDC) power supplying structure face reduced power conversion efficiency under heavy load conditions and increased battery loading, leading to shorter battery life compared to conventional power supplying structures.
Innovation Solution
A power supplying circuit and system that selectively uses either the conventional or NVDC power supplying structure based on system load conditions, employing a charger unit, switching unit, and voltage regulating unit to automatically switch between supplying voltages, optimizing power consumption and extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the NVDC power supplying structure is adopted, then the power conversion efficiency under light load condition is improved, but the power conversion efficiency under heavy load condition deteriorates
Solution Approach 1:
The patent implements dynamic switching between NVDC and conventional power supplying structures based on real-time detection of system load conditions. The switching unit dynamically selects the appropriate power supply mode: NVDC mode for light load conditions to maximize conversion efficiency, and conventional mode for heavy load conditions to ensure stable power delivery and battery protection, thereby resolving the adaptability contradiction
Solution Approach 2:
The patent changes the operational parameters of the power supplying system by switching between different power supply modes. The control unit monitors load parameters and adjusts the power supply configuration accordingly, transitioning between NVDC and conventional modes to optimize performance across different operating conditions
2Loss of energy
If the NVDC power supplying structure is adopted, then the power conversion efficiency under light load condition is improved, but the life of rechargeable battery deteriorates
Solution Approach 1:
The patent dynamically adjusts the power supply mode based on load conditions to protect the battery. Under heavy load conditions, the system switches to conventional power supply mode which reduces the discharge rate of the rechargeable battery, thereby extending its operational life. Under light load conditions, it uses NVDC mode for efficiency, thus resolving the contradiction between efficiency and battery longevity
Solution Approach 2:
The control unit continuously monitors system parameters including load conditions and battery state, using this feedback to make intelligent decisions about power supply mode switching. This feedback mechanism ensures the battery is protected from excessive discharge while maximizing overall system efficiency
3Loss of energy
If the conventional power supplying structure is used, then the power conversion efficiency under heavy load condition is improved, but the power conversion efficiency under light load condition deteriorates
Solution Approach 1:
The patent employs dynamic switching capability to adapt the power supply structure to current load requirements. The system automatically selects between conventional and NVDC modes based on real-time load detection, ensuring optimal power conversion efficiency across the full range of operating conditions rather than being fixed to a single mode
4Adaptability or versatility
If an additional boost circuit is added to support system component operation, then the system can operate under NVDC structure, but the loading on charging battery increases
Solution Approach 1:
The patent dynamically switches between power supply modes to manage battery loading. When the system operates under heavy load conditions requiring the boost circuit, it switches to conventional power supply mode which reduces the burden on the rechargeable battery. This dynamic adaptation allows the system to maintain full operational capability while protecting battery life
Data Source
AI summary
A power supplying circuit adapted for receiving an output from a power adapter and supplying power to a battery unit and a system load is provided. The power supplying circuit includes a charger unit, a switching unit, and a voltage regulating unit. The charger unit receives a first supplying voltage from the power adapter through a power terminal and charges the battery unit. The switching unit is coupled to the power terminal and the charger unit. The switch unit is configured for receiving the first supplying voltage and a second supplying voltage from the charger unit. The voltage regulating unit is coupled to the switching unit and configured for powering the system load. The switching unit supplies the first supplying voltage to the voltage regulating unit under heavy load condition. The switching unit supplies the second supplying voltage to the voltage regulating unit under light load condition.